%0 Journal Article %A A. L. Skubachevskii %T Solvability of elliptic problems with boundary conditions of Bitsadze--Samarski{\v\i} type %J Differencialʹnye uravneniâ %D 1985 %P 701-706 %V 21 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1985_21_4_a17/ %G ru %F DE_1985_21_4_a17